I had to run a test for a client before one of our Aventail boxes was sent out. Their main concern was the hard-disk and filesystem stability since they had some issue previously. The SonicWALL Aventail boxes are basically heavily-customised Debian machines. Here's how I went about testing the filesystem: telinit 1 # this tells … Continue reading Checking the file system of a linux box
Measuring Bandwidth using Wireshark
Update: For easy bandwidth visualization from packet captures, check out a web-based pcap parser we wrote: https://medium.com/cybersift/the-cybersift-packet-capture-parser-bandwidth-usage-43fe479ecaf0 There are of course several ways of measuring bandwidth usage from a particular PC. But when it comes to granularity and detail, almost nothing beats wireshark. Wireshark has several ways of showing the bandwidth being used, each method displays the … Continue reading Measuring Bandwidth using Wireshark
David Vassallo's Blog 
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